Heathrow Terminal five has refused to give any indication of what was behind the baggage chaos that left thousands of passengers without their luggage as the automatic luggage system ground to a halt last week.
One day into the job, CEO John Holland-Kaye was forced to apologise following the backlog of luggage that began piling up in the terminal on Thursday.
A spokesperson for Heathrow confirmed to ComputerworldUK that the "technical glitch" had been fixed on Sunday, but would not say what caused the problem.
Although the conveyor belts are functioning as usual, the holiday-goers will have a significant wait before the backlog clears. British Airways has warned that passengers who are without their personal belongings will have to wait "several more days" to be reunited.
Mr Holland-Kaye yesterday told the BBC that Heathrow had taken "too long" to resolve the problem, and apologised to affected passengers.
Heathrow was faced with an identical situation in September last year, when it also blamed an "IT problem".
When Terminal 5 first opened, it experienced serious baggage system problems in June 2009, which resulted in Heathrow not being able to move bags for passengers changing flights at the terminal. IT systems controlling the baggage belts were not ruled out as a cause of the problem.
Sign up for CIO Asia eNewsletters.